id,node_id,number,title,user,state,locked,assignee,milestone,comments,created_at,updated_at,closed_at,author_association,active_lock_reason,draft,pull_request,body,reactions,performed_via_github_app,state_reason,repo,type
320838184,MDU6SXNzdWUzMjA4MzgxODQ=,2108,Avoiding duplicate time coordinates when opening multiple files,5442433,closed,0,,,7,2018-05-07T14:59:54Z,2023-03-12T13:29:40Z,2023-03-12T13:29:40Z,NONE,,,,"When opening multiple netCDF files with xr.open_mfdataset(nfiles), if the files have a duplicate time stamp (e.g. when they are a product of a restart and continue process) the final xarray dataset has duplicate time coordinates like,

<xarray.DataArray 'time' (time: 39)>
array(['2010-02-01T00:00:00.000000000', '2010-02-01T01:00:00.000000000',
       '2010-02-01T02:00:00.000000000', '2010-02-01T03:00:00.000000000',
       '2010-02-01T04:00:00.000000000', '2010-02-01T05:00:00.000000000',
       '2010-02-01T06:00:00.000000000', '2010-02-01T07:00:00.000000000',
       '2010-02-01T08:00:00.000000000', '2010-02-01T09:00:00.000000000',
       '2010-02-01T10:00:00.000000000', '2010-02-01T11:00:00.000000000',
       **'2010-02-01T12:00:00.000000000', '2010-02-01T12:00:00.000000000'**,
       '2010-02-01T13:00:00.000000000', '2010-02-01T14:00:00.000000000',
       '2010-02-01T15:00:00.000000000', '2010-02-01T16:00:00.000000000',
       '2010-02-01T17:00:00.000000000', '2010-02-01T18:00:00.000000000',
       '2010-02-01T19:00:00.000000000', '2010-02-01T20:00:00.000000000',
       '2010-02-01T21:00:00.000000000', '2010-02-01T22:00:00.000000000',
       '2010-02-01T23:00:00.000000000', '2010-02-02T00:00:00.000000000',
       '2010-02-02T00:00:00.000000000', '2010-02-02T01:00:00.000000000',
       '2010-02-02T02:00:00.000000000', '2010-02-02T03:00:00.000000000',
       '2010-02-02T04:00:00.000000000', '2010-02-02T05:00:00.000000000',
       '2010-02-02T06:00:00.000000000', '2010-02-02T07:00:00.000000000',
       '2010-02-02T08:00:00.000000000', '2010-02-02T09:00:00.000000000',
       '2010-02-02T10:00:00.000000000', '2010-02-02T11:00:00.000000000',
       '2010-02-02T12:00:00.000000000'], dtype='datetime64[ns]')
Coordinates:
  * time     (time) datetime64[ns] 2010-02-01 2010-02-01T01:00:00 ...

Is there a way to avoid this either while reading or afterwards by dropping the non unique time coordinates?","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/2108/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed,13221727,issue